Title :
Characterization of the traveling standard for an international comparison of DC voltage ratio
Author :
Reedtz, Giancarlo Marullo ; Cerri, Roberto
Author_Institution :
Ist. Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy
fDate :
4/1/1999 12:00:00 AM
Abstract :
An international comparison of DC voltage ratio for voltages up to 1000 V has been started. It is one of the key-comparisons of electrical quantities selected by the CCEM in order to foster mutual recognition of the national measurement standards and calibration certificates issued by National Metrological Institutes. The results of the work carried out by IEN, the pilot laboratory of the comparison, in order to characterize a voltage divider are reported. Drift and dependence on ambient conditions of this divider were found low enough to justify its use as the traveling standard in the comparison
Keywords :
calibration; certification; transfer standards; voltage dividers; voltage measurement; 1000 V; DC voltage ratio; ambient conditions dependence; calibration certificates; drift; guarding system; international comparison; mutual recognition; national audit; national measurement standards; thick film resistors; traveling standard; voltage divider; Calibration; Humidity; Laboratories; Measurement standards; Monitoring; Resistors; Stability; Temperature; Uncertainty; Voltage measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
